Protective case for earphone



FIG. 1 is a perspective view of a protective case for earphone showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view thereof in a use state; and,

FIG. 9 is an enlarged view of portion 9 shown in FIG. 1.

The broken lines depict portions of the protective case for earphone and form no part of the claimed design. 

CLAIM The ornamental design for a protective case for earphone, as shown and described. 